Governor for internal-combustion engines



May 25,1926.

J. G. KERST GOVERNOR FOR INTERNAL COMBUSTION ENGINES Filed March 2, 1923 2 Sheets-Sheet mi am z2 if INVENTOR- JOHN G. KERST ATToRNEY.

f J. G. KERST GOVERNOR FOR INTERNAL GOMBUSTION ENGINES May 25 l1926. y 1,586,043

Filed March 2, 1925 2 Sheets-Sl'xeel 2 `Joh/v G. KERST B`Y ATTORNEY Patented May 25, 1926.

UNITED STAFE'E JOHN G. KERST, 0F SPRINGFIELD, ILLINOIS.

GOVERNOR FOR INTERNAL-COMBUSTION ENGNES.

Application filed March 2, 1923. VSerial No. 622,365.

This invention relates to governors, designed more especially for use in internal combustion engines, and it has for its objects among others to provide a simple, yet etlicient, durable and reliable engine governor having provisions for the simultaneous adjustment and control of the governor and' spark timer of an internal combustion engine, and also one that lcan be readily applied to internal combustion engines'already constructed, and of any well-known type.

It has for a further object to provide an improved lgovernor embodying an adjusting stand and a link, or an analogous element, with suitable connections whereby the simultaneous control of the speed and the fuel feed are accomplished.

Other objects and advantages of the invention will hereinafterI appear and the novel features thereof will be particularly pointed out in the appended claims.

The principle of the invention is capable of embodiment in a variety of forms, one of which only is herein shown, for the purpose of illustration only, but without limiting myself to the particular arrangement and details of the parts thereof herein disclosed.

The invention, in such preferred form, is clearly illustrated in the accompanying drawings, Which, with the numerals of references marked thereon, form a part of this specification, and in which F igure'l is a side elevation of my present invention applied to an .internal combustion engine which may be of any well-known or preferred form of construction.

Figure 2 is` a top plan.

Figure 3 is a. section, on an enlarged scale, taken on the line 3 3 of Figure 2, looking in the direction of the arrows.

Figure 4 isa top plan of Figure 3 part-s broken away.

Figure 5 is a detail in elevation looking at the'side opposite that of Figure 3, with a portion broken away.

Like numerals of reference indicate like parts throughout the different views.

Referring tothe drawings,

1 designates the cylinders, 2 the manifold and 3 the carbureter of a motor or internal combustion engine of `any well-known or approved forml of construction. et is a flywheel carried by the shaft 5 and upon this shaft is mounted to slide a. sleeve G having the annular groove or channel 7 at one end, as seen clearly in Figures 1, 2 and 4, for a with purpose which will soon be made clear. At its other end, this sleeve is provided with oppositely disposed recesses S, lin this instance formed between separated lugs, as seen best in Figure 1, and in which recesses there are disposed the inner ends of the governor arms 9, as seen in Figure 1, these governor arms being pivotally mounted, as at 10, on the arms 11, see Figure 1, and these governor arms carry at their outer ends the governor balls 12, as seen clearly vin Figures 1, 3 and t, the governor being of the centrifugal type, as will be readily understood. l have omitted the gearing, the housing casting, and other parts not necessary for the understanding of the present invention which resides solely in the mechanism herein illustrated, in which 13 is the timing mechanism of any internal combustion en-l gine, with which is connected a rod 14C which is pivotally connected at 15 with onearm of a bell crank lever 16 pivoted at 17 on a suitable supporting member or base 18, while to the other arm of said bell crank lever is connected a rod 19 the other end of which is connected, as` at 20, with a bell crank lever 21 pivoted at 22 to the member 18 and to the other arm of which is connected a rod 3 which is pivotally connected, as at 24:, to the lower end of an arm 25 the upper end of which is mounted upon the polygonal fulcrum 27 of` a lever 28 carrying at its upper end a spring pawl member 29 carrying a pin 30 adapted for co-operation with the desired one of a plurality of holes 31 in a standard 32, as seen best in Figure 1. These holes are numbered, as seen in Figure 3, to indicate the number of revolutions per minute of the engine. Any other suitable means may be provided for holding the lever 28 inthe desired position.

Connected with the arm 25 at a point intermediate the pivot of the lever 28 and the connection 24 of the member 23, and upon the opposite side ofthe member 25, as at 33, is one end lof a rod 34 bent as at 35, to pass under the governor' sleeve 6, and having its other end bent substantially at right angles to form the upright 3G which passes upward through the link block or member l1 and through a curved slot 37 in the link i cross member 42, as seen best in Figure 2, and to which cross member is attached a bracket or the like 43 on which the standard 32 is aiiixed, as seen in Figure 2. rIhe upright portion 36 of the rod 34 is provided above the member 41 with a washer 44, and above the link 3S with a washer 45, a cotter pin or he like 46 being passed through the upright portion above the link.

47 is a rod sleeved at one end upon the upper en-d of the upright 36 and there secured by a cotter pin or the like 48.

49 is a U-shaped member carried by the sleeve 49a affixed to the shaft 50, which shaft is revolubly mounted in bearings 51 on the member 41, as seen clearly in Figure 4, and carrying upon one end of the crank arm 52 te which is connected the rod 53, the other end of which is connected with the member 54 controlling the flow of gas from the carbureter, as will be understood upon refer` ence to Figures 1 and 2. The connection ben tween the member 49 and the end of the rod 47 is such as to constitute a double. joint to provide for the requisite movement of the shaft 50.

55 are springs surrounding rods 5G arranged exteriorly of and parallel to the governor sleeve 6, finding a bearing at one end against abutments or lugs 56X on the sleeve and nuts 57 on the rods for tensioning the springs, as clearly seen in Figures 1 and 2. The rods 56 are threaded into the flywheel hub.

lilith the parts constructed and arranged substantially as hereinbefore described, the operation is clear and will be readily understood. Briefly stated, it is as follows :-the manifold is provided with the usual valve. To start the engine, open the valve in the carbureter and leave the same open and the governor and the valve in the manifold will take care of the engine, as set in the link 38 by the rod 34 and the rod 19 connected with the member 47. The rod 34 has but little travel in the curved slot 37, as all the throw therein is not used. The connections of the rods 23 and 34 at 24 and 33 on the arm 25 are loose and yield the amount the link is moved out of alignment by the outward movement ofthe sleeve acting on the link. The rod 24 controls the connections in the link slot in connection with the lever 2S, and the rod 47 receives movement from the link connections. The rod 47 connections on the link and arm 49 on the shaft 50 adjusts the openings of the valve. If the handle 28 is moved say to the point farthest to the left in Figure 3 where it 1s retained by the engagement of the pin 30 in the hole 31 and the parts are in position for running the engine if the engine is started it will run at starting speed, the rod 34 being then moved to the point farthest from where the link 38 is fulcrumed. When the handle 28 is thus moved to throw the rod 34 in one direction, the rod 23 is moved in the opposite direction and the timing mechanism is simultaneously adjusted in synchronism with the speed, the valve of the carbureter being also adjusted at the same time. If the en gine races the sleeve 6 is moved upon its shaft 5, the governor balls are thrown outward and the springs 55 tensioned accordingly.

The functions of the springs may be stated as follows z-lllhen the engine is to be started the standing position of the balls, governor sleeve and link will be that shown in Figure l, and as the lever on the index stand is moved to another position the other parts will be moved correspondingiy. Now, the balls expand or are thrown outward the springs 55 will be compressed7 the strength and tension of the springs being such that all of the movements will correspond, the member acting on the spring slides and has one end screwed into the governor plate. These springs control the 1balls of the governor to their respective positions. The springs are adjusted by means of the nuts on the rods.

From the foregoing it will be seen that I have devised a novel form of governor readily applied to internal combustion engines of known types, and while the structural embodiment thereof is what I at the present time consider preferable, it is evidentv that the same is subjected to changes, variations and modifications in detail, proportions and relative arrangement of parts, etc., without departing from the spirit of the invention or sacrificing any of its advantages. I, therefore, do not intend to restrict myself to the exact construction and relative arrangement of parts hereinbefore disclosed, but reserve the right to make such changes, variations and modifications as come properly within the scope of the protection prayed.

I control the amount of fuel through the link, and through the lever on the switch stand I control the amount of throw of the link and position of the timer.

What is claimed as new is 1. In a governor for internal combustion engines, a link having a radial slot, a sleeve for transmitting movement to said link, means for giving motion to said sleeve, a fuel valve, and means whereby the movement of the sleeve positions the fuel valve, and the movement of the link relatively to the slot gives movement of the fuel valve for predetermined speed of the engine.

2. In a governor for internal combustion engines, a link having a radial slot, a sleeve for transmitting movement to said link, means for giving motion to said sleeve, a fuel valve, a timer, a governor and connections between the governor and fuel valve for controlling said valve independently of the timer. y

3. In a device of the character described, a Control lever, a governor, a fuel valve, a

spark timer, and means embodying a slot and link connection between the governor` and fuel valve for Controlling said valve independently of the timer.

4l. In a governor for internal combustion engines, an index stand, a timer, terminals on the stand for various speeds, and means on said stand eooperable with said terminals for controlling the position of the timer independent of the fuel valve.

5. In a governor for internal combustion engines, an index stand having terminals for various speeds, a lever on said stand for engaging said terminals, a timer, a link and slot connection between said lever and timer, said lever having a double throw, one throw controlling the throw in the link and slot and the other throw eontrollin g the position of the timer.

G. In a governor for internal combustion engines, an index stand having terminals for various speeds, a lever on said stand for engaging said terminals, a timer, a link and slot connection between said lever and timer, said lever having a double throw, one throw controlling the throw of the link and slot and the other throw controlling the position of the timer independently of the control of the fuel valve of the engine.

7. In a governor for internal combustion engines, a governor sleeve, a pivotally mounted link with an elongated slot, one end of said link cooperating with said sleeve, an operating lever, a timer control rod, conneetions between the same and said operating lever, and a rod connected with said lever and having limited loose connection with said link through said slot.

8. In a governor for internal combustion lfor cooperation with said means, a governor sleeve, a pivoted memberl eooperable with the said governor sleeve, Connections between said pivoted member and the lever, and eooperable eonneetions between .said parts and the sai-d member and the spark timer of the engine.

10. A governor, a fuel valve, a spark timer, a control lever and eooperable means and connections whereby the fuel valve is controlled independently of the timer.

11. In a governor, for combustion engines, a slidable sleeve, a fulerumed member aotuated by said sleeve, said member being .nrovided with slidable means for increasing the opening of the working position of the fuel valve.

In testimony whereof I aiix my signature.

JOHN G. KERST. 

